Coding for Underwater Robotics

Why It Matters

The work advances autonomous underwater navigation, a critical capability for marine research, defense, and offshore industries, while showcasing a pipeline for talent in high‑tech robotics.

Key Takeaways

• Developed collaborative diver‑vehicle navigation algorithm.
• Tested algorithm in Atlantic, Charles River, Lake Superior.
• Overcame GPS absence with acoustic and sensor fusion.
• Internship program runs May‑August; applications now open.
• Demonstrated student leadership in real‑world field trials.

Pulse Analysis

Underwater robotics faces a fundamental challenge: traditional satellite‑based positioning systems like GPS do not function beneath the surface. Researchers therefore rely on acoustic ranging, inertial measurement units, and visual cues to estimate vehicle pose. MIT Lincoln Laboratory’s Advanced Undersea Systems and Technology Group has been at the forefront of integrating these modalities, creating robust navigation stacks that enable autonomous missions in complex marine environments.

During the 2025 summer term, intern Ivy Mahncke tackled this problem by designing an algorithm that synchronizes a human diver’s movements with an autonomous vehicle’s trajectory. By leveraging real‑time sensor fusion, the software compensates for signal loss and drift, allowing the pair to maintain coordinated paths without external beacons. Field deployments across diverse water bodies—including open ocean, a river, and a freshwater lake—validated the system’s adaptability and demonstrated that student‑driven innovation can meet rigorous operational standards.

Beyond the technical achievement, Mahncke’s experience underscores a growing industry trend: hands‑on internships are becoming essential for cultivating the next generation of underwater engineers. Lincoln Laboratory’s summer research program, now open for applications, offers students direct exposure to mission‑critical projects, accelerating talent pipelines for sectors ranging from oceanographic science to naval defense. As autonomous underwater vehicles gain prominence, such programs will be pivotal in delivering the expertise needed to navigate the depths safely and efficiently.